<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import { userRegister, userLogin } from '@/api/user'
import { useUserStore } from '@/stores'
import { useRouter } from 'vue-router'

const form = ref()
const isRegister = ref(false)
const userStore = useUserStore()
const router = useRouter()
//注册
const formModel = ref({
    username: '',
    password: '',
    repassword: ''
})
const rules = {
    username: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 5, max: 10, message: '用户名保持5-10位' }
    ],
    password: [
        { required: true, message: '请输入密码', trigger: 'blur' },
        {
            pattern: /^\S{6,15}$/,
            message: '密码必须是6-15位的非空字符',
            trigger: 'blur'
        }
    ],
    repassword: [
        { required: true, message: '请输入密码', trigger: 'blur' },
        {
            pattern: /^\S{6,15}$/,
            message: '密码必须是6-15位的非空字符',
            trigger: 'blur'
        },
        {
            validator: (rule, value, callBack) => {
                if (value !== formModel.value.password) {
                    callBack(new Error('两次输入的密码不一致'))
                } else {
                    callBack()
                }
            },
            trigger: 'blur'
        }
    ]
}

const register = async () => {
    await form.value.validate()
    const res = await userRegister(formModel.value)
    ElMessage.success('注册成功')
    isRegister.value = false
}
watch(isRegister, () => {
    ;(formModel.value.username = ''), (formModel.value.password = ''), (formModel.value.repassword = '')
})

const login = async () => {
    await form.value.validate()
    const res = await userLogin(formModel.value)
    userStore.setToken(res.data.token)
    ElMessage.success('登陆成功')
    router.push('/')
}
</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>

        <el-col :span="6" :offset="3" class="form">
            <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-if="isRegister">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>

                <el-form-item prop="username">
                    <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
                </el-form-item>

                <el-form-item prop="password">
                    <el-input v-model="formModel.password" :prefix-icon="Lock" type="password" placeholder="请输入密码"></el-input>
                </el-form-item>

                <el-form-item prop="repassword">
                    <el-input v-model="formModel.repassword" :prefix-icon="Lock" type="password" placeholder="请输入再次密码"></el-input>
                </el-form-item>

                <el-form-item>
                    <el-button @click="register" class="button" type="primary" auto-insert-space> 注册 </el-button>
                </el-form-item>

                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false"> ← 返回 </el-link>
                </el-form-item>
            </el-form>

            <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-else>
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>

                <el-form-item prop="username">
                    <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
                </el-form-item>

                <el-form-item prop="password">
                    <el-input v-model="formModel.password" @keyup.enter.native="login" name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"></el-input>
                </el-form-item>

                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>

                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>

                <el-form-item>
                    <el-button @click="login" class="button" type="primary" auto-insert-space>登录</el-button>
                </el-form-item>

                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true"> 注册 → </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
.login-page {
    height: 100vh;

    background-color: #fff;

    .bg {
        background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto, url('@/assets/login_bg.jpg') no-repeat center / cover;

        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;

        flex-direction: column;

        justify-content: center;

        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;

            display: flex;

            justify-content: space-between;
        }
    }
}
</style>
